Home / 547,056.20-819,928.20-280,679.60

Finding the Fourth Proportional to 547,056.20, 819,928.20 and 280,679.60

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Solution

The fourth proportional to 547,056.20, 819,928.20 and 280,679.60 is: 420,682.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,056.20 : 819,928.20 = 280,679.60 : x
  2. Step 2: Convert to fraction form
    547,056.20/819,928.20 = 280,679.60/x
  3. Step 3: Cross multiply
    547,056.20x = 819,928.20 × 280,679.60
  4. Step 4: Simplify right side
    547,056.20x = 230,137,119,204.72
  5. Step 5: Solve for x
    x = 230,137,119,204.72/547,056.20
  6. Step 6: Final answer
    x = 420,682.77

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.